I bought a pair of speakers from an out of work musician who, at the last moment remembered that he had another set of old speakers in the basement and drug out these Sansuis. Normally I would have taken a pass but he was really broke and wasn't asking a whole lot for them so I figured it a good cause and could use the sturdy little beasts for speaker stands if nothing else. The aluminum coated mylar dustcaps are completely trashed on them and I'm wondering if a regular aluminum cap will be a suitable replacement or do I need to track down original parts?